The invention disclosure relates to a hand-held power tool with a drive unit which comprises a spindle unit, and with a locking unit for locking a spindle unit which is mounted, in particular, rotatably about a drive axis. It is proposed that the drive unit, in particular the spindle unit, may be oriented, in particular may be pre-centered, with respect to the locking unit, in particular by means of a magnetic force.

A power scrubber including a telescopic shaft, a power receptacle, a handle, a power head, a pivot coupling, a first scrubber head, a second scrubber head, and a drive. The power receptacle and the handle are each positioned adjacent the first end. The pivot coupling couples the power head to the second end and is operable to adjust an angle of the power head relative to the shaft axis. The drive is coupled to and driven by the power head and extends along a longitudinal axis. The drive includes a first connector selectively engaging the first scrubber head with a center of the first scrubber head aligned with the longitudinal axis and a second connector selectively engaging the second scrubber head with a center of the second scrubber head aligned with the longitudinal axis. The first connector is connected to the first scrubber by a bayonet coupling.

A handheld power tool includes a grip for a user to hold; an output shaft rotatable about a first axis; a mounting device for mounting a working attachment to the output shaft, where the working attachment has a mounting port that matches the output shaft; and an operating member capable of driving the output shaft to move along the direction of the first axis to lock or loosen the working attachment. The operating member could be located at least at a first position, a second position and a third position. When the operating member is located at the first position, the working attachment is locked; when the operating member moves from the first position to the second position, the output shaft moves downward along the first axis by a first preset distance. The third position is different from the first position and the second position.

A grinder includes: an electric motor having a motor shaft extending in a first direction; a final output shaft extending in a second direction orthogonal to the first direction and on which a tool accessory is mountable; first and second bearings that rotatably support the final output shaft, the second bearing that being located closer to the tool accessory in the second direction than the first bearing; a gear housing having a first through-hole, which passes through the gear housing in the second direction has a female thread; a bearing box that supports the second bearing and has a second through-hole passing through the second through-hole in the second direction coaxially with the first through-hole; and a screw threadedly engaged with the first through-hole and is inserted in the direction from the bearing box toward the gear housing to fixes the gear housing and the bearing box to each other.

A plate-like backing pad (20) for releasable attachment to a hand-held polishing/sanding power tool (2) includes a center axis (34), a top surface (50) having a resilient plastic damping layer (52) attached thereto, an even bottom layer (22) attached to a bottom surface (56) of the damping layer (52) and adapted for releasable attachment of a polishing/sanding member (24), and an attachment member (38) adapted on the top surface for releasable attachment to a corresponding attachment element (32) of the power tool (2). The top surface has a central region (58) extending around the center axis and an external region (60) surrounding the central region recessed with respect to the external region. The attachment member adapted in the recessed central region with the center axis extending through the attachment member and part of the central region surrounding the attachment member.

A quick clamping device for positioning an accessory device on a hand-held power tool such as an angle grinder. The quick clamping device includes a drive output unit for moving the accessory device about a drive output axis of the drive output unit. The quick clamping device further includes a retaining unit for retaining the accessory device on the hand-held power tool. The retaining unit has a retaining element. The retaining unit has a retaining parameter which changes in a retaining state, in particular in the event of a transition from a retaining state to a clamping state.